"I bow to Dr Babasaheb Ambedkar on his Mahaparinirvan Diwas," the prime minister said on Twitter.

Rahul pays tribute to Ambedkar

Congress vice-president Rahul Gandhi today paid tribute to the architect of the Constitution, B R Ambedkar, on his death anniversary and said men might be mortal but their ideas need to be propagated.

Gandhi, poised to take over as Congress president, took to Twitter to remember Ambedkar, hailed for his contribution towards the upliftment of Dalits.

"Men are mortal. So are ideas. An idea needs propagation as much as a plant needs watering. Otherwise, both will wither and die. My tributes to #BabasahebAmbedkar on #MahaParinirvana Diwas," Gandhi said.